High-property metal/graphite compound counter electrode for dye sensitization solar battery and preparation method thereof

A technology for solar cells and dye sensitization, applied in the field of new material technology and new energy, can solve the problems of expensive platinum and high manufacturing cost, and achieve the effects of low manufacturing cost, long service life and excellent electrochemical performance

Active Publication Date: 2007-07-18
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the rarity and high cost of platinum, this type of electrode has a high manufacturing cost

Method used

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Embodiment Construction

[0017] In the first step, the commercially available flake graphite with a particle size between 50nm-200μm and the inorganic crystal material with a particle size between 5nm-30μm are mixed by ultrasonic stirring or vigorous mechanical stirring in an appropriate amount of lipophilic organic solvent; , Inorganic crystal materials are titanium dioxide, aluminum oxide, magnesium oxide, zinc oxide, copper oxide, silicon dioxide, nickel oxide, magnesium sulfate, magnesium carbonate, magnesium hydroxide, barium sulfate, calcium carbonate, calcium sulfate, iron oxide, pentoxide One or more kinds of vanadium are mixed. The main function of inorganic crystal materials is porosity. The mass percentage of inorganic crystal materials to the total mass of graphite and inorganic crystal materials is 5%. It is used for lipophilic organic solvents. Ethanol or acetone, the lipophilic organic solvent has played the effect of mixing here, and the amount of usage does not affect the effect of the...

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Abstract

This invention discloses a high-performance metal/graphite composite dyed electrode used in dye-sensitized solar cell and its preparation method, which takes graphite as the basic material that mixes with the small-sized inorganic solid particles, and the mixture is pressed into the porous metal grid under a certain pressure, forming the porous electrode material with high-ratio surface area. The surface resistance of this composite electrode is very small, which can receive the photoelectric transmission properties comparing with the platinum electrode when the effective contact area between graphite and liquid electrolyte in the dye-sensitized nanocrystal solar cell is larger.

Description

technical field [0001] The invention relates to a metal / graphite composite counter electrode material and a novel chemical solar cell, and belongs to the fields of new material technology and new energy technology. Background technique [0002] Dye-sensitized nanocrystalline solar cell is a new type of chemical solar cell developed in the 1990s. It has low cost, simple preparation process and good environmental compatibility, and has a good application prospect. However, the currently used counter electrode is mainly an electrode with platinum as the surface coating. Due to the rarity and high cost of platinum, this type of electrode has a high manufacturing cost. Therefore, it has become a development trend to develop new high-efficiency and cheap electrodes that can replace platinum. Contents of the invention [0003] The purpose of the present invention is to provide a metal / graphite composite counter electrode with good electrochemical performance and its preparation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0224H01L31/18H01G9/20H01M14/00
CPCY02E10/542Y02P70/50
Inventor 吴季怀姜奇伟林建明黄妙良
Owner HUAQIAO UNIVERSITY
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